Democrats in the state have long seen the former three-term congressman as something of a rogue actor within the party.

After losing the 2016 Democratic Senate primary to former Rep. Patrick Murphy, who lost to GOP Sen. Marco Rubio in the general election, Grayson’s team never stopped sending campaign contribution emails.

“He doesn’t care what people think, including his own party,” Aubrey Jewett, a professor of political science at the University of Central Florida, told the Orlando Sentinel. “That endears [him] to some people and drives some people crazy. That’s the nature of Alan Grayson.”

His base of support includes mostly small individual contributions.

Grayson has about $500,000 in cash on hand, per his latest Federal Elections Commission filing, and has raked in around $320,000 since last January. (He also has a running debt bill upwards of $2 million from his failed Senate campaign.)

Democrats worry Grayson could have his eye fixed on his former seat in Florida’s 9th District held by freshman Democratic Rep. Darren Soto.